
<template>
	<view class="wrap">
		<view class="searchBar">
			<view class="inputBox">
				<!-- icon图标 -->
				<view class="iconfont icon-sousuo"></view>
				<!-- 搜索框 -->
				<input :abjust-position="false" type="text" placeholder="日照香炉生紫烟" style="line-height: 30rpx;height: 30rpx;">
			</view>
			<view class="btn">
				<button class="searchButton">搜索</button>
			</view>
		</view>
		<u-button @click="clear">清空列表</u-button>
		<u-waterfall v-model="flowList" ref="uWaterfall">
			<template v-slot:left="{leftList}">
				<view class="demo-warter" v-for="(item, index) in leftList" :key="index">
					<!-- 警告：微信小程序不支持嵌入lazyload组件，请自行如下使用image标签 -->
					<!-- #ifndef MP-WEIXIN -->
					<u-lazy-load threshold="-450" border-radius="10" :image="item.image" :index="index"></u-lazy-load>
					<!-- #endif -->
					<!-- #ifdef MP-WEIXIN -->
					<view class="demo-img-wrap">
						<image class="demo-image" :src="item.image" mode="widthFix"></image>
					</view>
					<!-- #endif -->
					<view class="demo-title">
						{{item.title}}
					</view>
					<view class="demo-price">
						{{item.price}}元
					</view>
					<view class="demo-tag">
						<view class="demo-tag-owner">
							自营
						</view>
						<view class="demo-tag-text">
							放心购
						</view>
					</view>
					<view class="demo-shop">
						{{item.shop}}
					</view>
					<!-- 微信小程序无效，因为它不支持在template中引入组件 -->
					<u-icon name="close-circle-fill" color="#fa3534" size="34" class="u-close" @click="remove(item.id)"></u-icon>
				</view>
			</template>
			<template v-slot:right="{rightList}">
				<view class="demo-warter" v-for="(item, index) in rightList" :key="index">
					<!-- #ifndef MP-WEIXIN -->
					<u-lazy-load threshold="-450" border-radius="10" :image="item.image" :index="index"></u-lazy-load>
					<!-- #endif -->
					<!-- #ifdef MP-WEIXIN -->
					<view class="demo-img-wrap">
						<image class="demo-image" :src="item.image" mode="widthFix"></image>
					</view>
					<!-- #endif -->
					<view class="demo-title">
						{{item.title}}
					</view>
					<view class="demo-price">
						{{item.price}}元
					</view>
					<view class="demo-tag">
						<view class="demo-tag-owner">
							自营
						</view>
						<view class="demo-tag-text">
							放心购
						</view>
					</view>
					<view class="demo-shop">
						{{item.shop}}
					</view>
					<!-- 微信小程序无效，因为它不支持在template中引入组件 -->
					<u-icon name="close-circle-fill" color="#fa3534" size="34" class="u-close" @click="remove(item.id)"></u-icon>
				</view>
			</template>
		</u-waterfall>
		<u-loadmore bg-color="rgb(240, 240, 240)" :status="loadStatus" @loadmore="addRandomData"></u-loadmore>
	</view>
</template>

<script>
	export default {
			data() {
				return {
					loadStatus: 'loadmore',
					flowList: [],
					list: [
						{
							price: 35,
							title: '北国风光，千里冰封，万里雪飘',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic.sc.chinaz.com/Files/pic/pic9/202002/zzpic23327_s.jpg',
						},
						{
							price: 75,
							title: '望长城内外，惟余莽莽',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic.sc.chinaz.com/Files/pic/pic9/202002/zzpic23325_s.jpg',
						},
						{
							price: 385,
							title: '大河上下，顿失滔滔',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic2.sc.chinaz.com/Files/pic/pic9/202002/hpic2119_s.jpg',
						},
						{
							price: 784,
							title: '欲与天公试比高',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic2.sc.chinaz.com/Files/pic/pic9/202002/zzpic23369_s.jpg',
						},
						{
							price: 7891,
							title: '须晴日，看红装素裹，分外妖娆',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic2.sc.chinaz.com/Files/pic/pic9/202002/hpic2130_s.jpg',
						},
						{
							price: 2341,
							shop: '李白杜甫白居易旗舰店',
							title: '江山如此多娇，引无数英雄竞折腰',
							image: 'http://pic1.sc.chinaz.com/Files/pic/pic9/202002/zzpic23346_s.jpg',
						},
						{
							price: 661,
							shop: '李白杜甫白居易旗舰店',
							title: '惜秦皇汉武，略输文采',
							image: 'http://pic1.sc.chinaz.com/Files/pic/pic9/202002/zzpic23344_s.jpg',
						},
						{
							price: 1654,
							title: '唐宗宋祖，稍逊风骚',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic1.sc.chinaz.com/Files/pic/pic9/202002/zzpic23343_s.jpg',
						},
						{
							price: 1678,
							title: '一代天骄，成吉思汗',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic1.sc.chinaz.com/Files/pic/pic9/202002/zzpic23343_s.jpg',
						},
						{
							price: 924,
							title: '只识弯弓射大雕',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic1.sc.chinaz.com/Files/pic/pic9/202002/zzpic23343_s.jpg',
						},
						{
							price: 8243,
							title: '俱往矣，数风流人物，还看今朝',
							shop: '李白杜甫白居易旗舰店',
							image: 'http://pic1.sc.chinaz.com/Files/pic/pic9/202002/zzpic23343_s.jpg',
						},
					]
				}
			},
			onLoad() {
				uni.showTabBar();
				this.addRandomData();
			},
			created() {
				uni.showTabBar();
			},
			onReachBottom() {
				this.loadStatus = 'loading';
				// 模拟数据加载
				setTimeout(() => {
					this.addRandomData();
					this.loadStatus = 'loadmore';
				}, 1000)
			},
			methods: {
				addRandomData() {
					for(let i = 0; i < 10; i++) {
						let index = this.$u.random(0, this.list.length - 1);
						// 先转成字符串再转成对象，避免数组对象引用导致数据混乱
						let item = JSON.parse(JSON.stringify(this.list[index]))
						item.id = this.$u.guid();
						this.flowList.push(item);
					}
				},
				remove(id) {
					this.$refs.uWaterfall.remove(id);
				},
				clear() {
					this.$refs.uWaterfall.clear();
				}
			}
		}
</script>
<style>
	/* page不能写带scope的style标签中，否则无效 */
	page {
		background-color: rgb(240, 240, 240);
	}
</style>

<style lang="scss" scoped>
	.searchBar {
		display: flex;
		justify-content: space-evenly;
		width: 100%;
		height: 50rpx;
		margin-top: 10rpx;
	}

	.inputBox {
		display: flex;
		background-color: aliceblue;
		width: 600rpx;
		border-radius: 30rpx;
	}

	.icon-sousuo {
		margin-top: 10rpx;
	}
	.searchButton {
		font-size: 10rpx;
	}
	.demo-warter {
			border-radius: 8px;
			margin: 5px;
			background-color: #ffffff;
			padding: 8px;
			position: relative;
		}
		
		.u-close {
			position: absolute;
			top: 32rpx;
			right: 32rpx;
		}
		
		.demo-image {
			width: 100%;
			border-radius: 4px;
		}
		
		.demo-title {
			font-size: 30rpx;
			margin-top: 5px;
			color: $u-main-color;
		}
		
		.demo-tag {
			display: flex;
			margin-top: 5px;
		}
		
		.demo-tag-owner {
			background-color: $u-type-error;
			color: #FFFFFF;
			display: flex;
			align-items: center;
			padding: 4rpx 14rpx;
			border-radius: 50rpx;
			font-size: 20rpx;
			line-height: 1;
		}
		
		.demo-tag-text {
			border: 1px solid $u-type-primary;
			color: $u-type-primary;
			margin-left: 10px;
			border-radius: 50rpx;
			line-height: 1;
			padding: 4rpx 14rpx;
			display: flex;
			align-items: center;
			border-radius: 50rpx;
			font-size: 20rpx;
		}
		
		.demo-price {
			font-size: 30rpx;
			color: $u-type-error;
			margin-top: 5px;
		}
		
		.demo-shop {
			font-size: 22rpx;
			color: $u-tips-color;
			margin-top: 5px;
		}
		// .check{
		// 	display: flex;
		// }
</style>
